From 2dc44ac1a6ea4578f641bbc9a633b4a4e4750cbb Mon Sep 17 00:00:00 2001
From: Chandler Cox <mr.chandlercox@gmail.com>
Date: Wed, 23 Jul 2025 19:52:42 -0500
Subject: [PATCH 1/2] Fix infinite loop on rich text box tag parsing with
 incomplete end of tag.

---
 Source/Engine/Utilities/HtmlParser.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Source/Engine/Utilities/HtmlParser.cs b/Source/Engine/Utilities/HtmlParser.cs
index 37b614b80..74f252c77 100644
--- a/Source/Engine/Utilities/HtmlParser.cs
+++ b/Source/Engine/Utilities/HtmlParser.cs
@@ -204,6 +204,10 @@ namespace FlaxEngine.Utilities
             SkipWhitespace();
             while (Peek() != '>')
             {
+                // Return false if start of new html tag is detected.
+                if (Peek() == '<')
+                    return false;
+                
                 if (Peek() == '/')
                 {
                     // Handle trailing forward slash

From 753035c4520bcd0ba10b12002d24e0bc0b93e0b3 Mon Sep 17 00:00:00 2001
From: Chandler Cox <mr.chandlercox@gmail.com>
Date: Thu, 24 Jul 2025 18:04:39 -0500
Subject: [PATCH 2/2] Fix issue with infinite loop if `\` is used instead of
 `/` for tag closing.

---
 Source/Engine/Utilities/HtmlParser.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Source/Engine/Utilities/HtmlParser.cs b/Source/Engine/Utilities/HtmlParser.cs
index 74f252c77..708829ba3 100644
--- a/Source/Engine/Utilities/HtmlParser.cs
+++ b/Source/Engine/Utilities/HtmlParser.cs
@@ -134,6 +134,10 @@ namespace FlaxEngine.Utilities
                     if (isLeadingSlash)
                         Move();
 
+                    // Dont process if wrong slash is used.
+                    if (c =='\\')
+                        return false;
+
                     // Parse tag
                     bool result = ParseTag(ref tag, name);